改性粉煤灰强化A^2／O-DMBR处理农村生活污水  

Study on Rural Domestic Wastewater Treatment by Adding Modified Fly Ash in A^2/O-DMBR

作　　者：凌琪[1] 张睿[1] 伍昌年[1] 周兆[1] 范一洲 

机构地区：[1]安徽建筑大学,水污染控制与废水资源化安徽省重点实验室,安徽合肥230601

出　　处：《水处理技术》2016年第8期96-99,共4页Technology of Water Treatment

基　　金：国家水体污染控制与治理科技重大专项课题(2014ZX07405003);国家级大学生创新创业训练计划项目(201510878106);省级大学生创新创业训练计划项目(2015080)

摘　　要：通过2组平行对比实验,重点考察改性粉煤灰对A^2/O-动态膜生物反应器处理农村生活污水的影响,并进行相关性分析。结果表明,投加改性粉煤灰对农村生活污水的脱氮除磷有强化作用,可以实现COD、TP、TN和NH4+-N的同步去除,比不投加改性粉煤灰去除率分别提高8.54个、22.1个、4.64个、4.87个百分点,出水污染物含量达到GB18918-2002的一级A标准;投加改性粉煤灰与TN、NH_4^+-N去除率的相关系数有显著性,与COD、TP去除率的相关系数有高度显著性。可为农村生活污水处理的工程实践提供参考。The effect of modified fly ash on the treatment of rural domestic wastewater by A^2/O dynamic membrane bio-reactor was studied by two parallel experiments, and the correlation analysis was made. The results showed that adding modified fly ash could increase the removal of nitrogen and phosphorus in rural domestic sewage, and achieve the simultaneous removal of COD, TP, TN and NH4^＋-N. Compared with modified fly ash not being added, the removal rates were increasedby 8.54 percent points, 22.1 percent points, 4.64 percent points, and 4.87 percent points, respectively, and the effluent index reached the first grade, standard A, according to the GB 18918--2002. The correlation coefficient of modified fly ash and the removal rates of TN and NH4^＋-N had statistical significance, and that of removal rates of COD and TP had high statistical significance, which can be served as the reference for wastewater treatment in countryside.

关 键 词：改性粉煤灰 A^2/O-DMBR 脱氮除磷 相关性 T检验 

分 类 号：X703.1[环境科学与工程—环境工程]